Catch.



Patented Oct. 17, 1916.

PETER 1 3111112, 013 $1ERLING, ILLINOIS, Asslfe'noa'ro 'FRANTZ MANUFACTURING co.,

" or STERLING, ILL-rivers, A ooRronAT'ioNoF 'iLLI'ito'fIs.

eATcH.

Specification of Letters IPatent.

Patentedflct. 17, 1916.

Application filed February 4, 191 Serial mi. 7 ,097.

To all whom it may concern:

Be it known that I, PETER -FRANTZ, a citizen of the United States of America, and resident of Sterling, l/Vh'iteside county, Illinois, have invented a certain new and useful Improvement in Catches, of which the following is a specification.

My invention relates to catches or locking devices for use more particularly on doors and windows, and especially on basement windows. i

The object of my invention is to provide an improved catch or locking device which can be cheaply manufactured from sheet metal, and having a handle which can be conveniently and effectively employed for pulling the door or window open, as well as for operating the device itself, and having also a cam action by which the door or window is not only tightly closed, but also forcibly opened a distance when the said handle of the device is rotated.

To this and other useful ends, my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings: Figure 1 is an inside View. of a basement window provided with a catch or locking device embodying the principles of my invention. Fig. 2 isan enlarged front elevationof the said catch or locking device, showing the same in locking position. Fig. 3 is a vertical section on line 3-3 in Fig. 2. Fig. 4 is a perspective of the handle and rotary member of the said catch. Fig. 5 a horizontal section on line 5-5 in Fig. 2.

As thus illustrated, the window 'A may be provided at its upper edge with hinges a of any suitable, known or approved character.

Thus, the window swings inward in the usual and well-known manner. The catch or locking device for the lower edge of the said swinging sash comprises, as shown, three sheet metal pieces B, C and D, these three section-s being held in place by screws 1 and 2, and by the pivot bolt 8, whereby the section C rotates about a horizontal axis formed by said bolt, which latter extends centrally through the upper section D which is secured fiatwise to the inner surface'of the swinging window sash. The section B has an upper portion Z) thereof pressed outward to form the stationary cam which extends obliquely to the plane of the bodyportion of the section B, the vertical edge 4: of

this cam being'spaced a distance from the outer surface of the said section or plate. The section C has a disk-like central portion 0 which is perforated at its center to receive the bolt 3, and is also formed with a bailshape handle 5 c'lisposed, preferably, in the plane of the axis about which this section C rotates to lock and unlock the window. The

plane of this handle 5 is, of course, a variable one, as it tilts about the said horizontal axis during the operation of the lock or catch. This section C has a cam portion 6 which engages the inner surface of the cam b to forcethe window very tightly into closed position.

The said section C is also provided with another cam portion 7 which is adapted to engage the outer surface of the cam portion Z), when the handle 5 is rotated into the position shown in dotted lines in Fig. 2, thereby toforcibly move the lower edge of the window sash outward a distance, so that thesash will be loosened at its lower edge by the mere unlocking of the catch. A notch S separates the adjacent edges of the cams 6 and 7, and the edge 4 enters this notch when the section C is rotatedto the position shown in full lines in Figs. 1 and 2, whereby the cam 6 is behind the cam Z) in the manner shown more clearly in Figs. 8 and 5. The handle ,5 canbe used as a grip to pull the window open,if it does not open easily, so that this handle serves a double purpose. In other words, thesaidhandle serves not only as a thumb-piece for twisting or turning the rotary section C of the catch, but is of such shape that it can thus be gripped to pull the window open. Thus, it will beseen that the three sections B, C and D are each made of one integral piece of sheet metal, and that the entire device can be manufactured very economically. The section D is perfectly flat, but the sections B and C are pressed or bent into the desired form, in the manner shown and described. Preferably, the opening 9 of the handle 5 is Wide enough to receive the fingers vof the hand by which the catch is unlocked, or at least one or more'of the fingers, so that the operator can exert a strong. pull if the window does not open easily.

I do not limit myself to the exact construction shown and described.

What I claim as my invention is 1. A catch for holding a movable element in stationary position, comprising a fixed plate having a stationary cam portion, a ro-' tary plate provided with a notch to receive said stationary cam-portion and having 'inner and outer cam portions disposed in pos1t1on to pass, respectively, 11151613 and outside of said stationary cam portions, and a pivot for, said rotary plate, two of said cam portions cooperating to tightly lock said member against movement, and one of these portions and the third portion cooper ating to force said'member from' its sta tionary position.

' 2. A catch for holdingamovable element in stationary position, comprising a fixed plate having a stationary cam portion, a

rotary plate having inner and outer cam portions dlsposed 1n pos1t1on to pass, respectively, inside and outside of said stationary cam portions, and a pivot for said rotary plate, two of said cam portions cooperating to tightly lock said member against move- -ment, and one of these portions and the third portion cooperating to force said mem ber from its stationary position, the two cam portions of the rotary plate having a notch between them to receive the stationary cam portion, one rotary cam'engaging the inner surface of the fixed cam, the other 1'0- tary cam engaging the outer surface of the fixed cam, and both plates being formed from sheet metal. V 3. Acatch comprising a fixed plate having a stationary cam portion, a rotary plate havlng lnner and outer cam portions disposed lnpositlon to pass, respectlvely, 1n-

side and outside of said stationary cam portions, when the rotary plateis turned in one direction and a pivot for said rotary plate, two of said cam portions cooperating when the rotary plate is turned in said direction, and one; of these portions and the third portion cooperating when said rotary plate is'turned in the opposite direction, the

fixed plate being secured to a window frame, and saidrotary plate being onithe sash of said window, the first mentioned coopera- Copies of this patent may be obtained for Signed by me at Sterling,

tion serving to tightly close the sash, and

to tightly lock said member against move-' ment, and one of these portions and the third portion cooperating to force said member from its stationary pos1t1on, the two cam portions of the rotary plate having a notch between them to receive the cam portion on the fixed plate, one rotary cam engaging the inner surface of the stationary cam, the other rotary cam engaging the outer surface of the stationary cam, and both plates being formed entirely from sheet metal, said rotary plate having a bail-shape handle ex tending outward therefrom and centrally of said pivot.

5. In a catch, a fixed plate having an outwardly displaced portion forming a stationary cam, a rotary member, means on said member to engage the inner surface of said cam when said member is partially rotated in one direction, and means on said member to engage the. outer surface of said cam'whensaid member is partially rotated in the opposite direction, said'member having a notch to receive said cam.

I Illinois, this 29 day of Jan. 1916.

PETER FRANTZ.

Witnesses MAURICE Dow, W. R. 1 RoLLo.

five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

